JP4028784B2 - Suction port and vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a suction port body having a suction port opened to face a surface to be cleaned and a vacuum cleaner including the same.
[0002]
[Prior art]
Conventionally, this type of suction port body has a horizontally long case body. A suction port is opened on the front side of the lower surface of the case body that faces the floor as the surface to be cleaned. A rotary brush as a rotary cleaning body is attached to the suction port so as to be rotatable in the front-rear direction. Further, a brushed cloth, which is a wiping portion as a wiping body, is attached to the rear surface of the lower surface of the case body so as to be rotatable in the front-rear direction. During cleaning, the suction port is moved back and forth, and dust on the floor is scraped with a rotating brush, and dust on the floor is wiped off with a raised cloth (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-290249 (page 4-5, FIGS. 1 and 4)
[0004]
[Problems to be solved by the invention]
However, in the above-mentioned suction port body, if cleaning is continued, a large amount of dust wiped off with the raised cloth adheres to and accumulates on the raised cloth. It falls on the floor and makes it dirty. For this reason, there is a problem that it is difficult to improve the usability because the dust accumulated on the raised cloth must be periodically removed.
[0005]
This invention is made | formed in view of such a point, and it aims at providing the suction inlet body which can improve usability, and a vacuum cleaner provided with the same.
[0006]
[Means for Solving the Problems]
The suction port of the present invention includes a rotating cleaning body that scrapes off dust on the surface to be cleaned, and a case body that is positioned in front of the suction port, and the outer peripheral surface is in contact with the surface to be cleaned. And a wiping body that can be rotated by a predetermined angle in the opposite direction to each other , and the wiping body is provided on the outer peripheral surface, and contacts the surface to be cleaned by the rotation of the wiping body when the case body moves backward Then, the front of the suction port is closed and the dust on the surface to be cleaned is wiped off, and the dust that has been wiped off the surface to be cleaned by contacting the rotating cleaning body by the rotation of the wiping body when the case body moves forward is rotated and cleaned. The wiping portion to be scraped off, and the wiping portion and the wiping body at different positions in the circumferential direction and at a position facing the surface to be cleaned by rotation of the wiping body when the case body moves forward, In front of the suction port In which and a recess communicating to the outside. Then, the wiping dust at wiping portion of the wiping member in contact with the cleaning surface during retraction of the case body, portion wiping during forward of the case body is not scraped off by the rotating cleaning body by contact with the rotating cleaning body, this The wiped part closes the front of the suction port when the case body is retracted so that the vacuum level can be improved and sucked in from the suction port. In addition, when the case body moves forward, the concave portion communicates the front of the suction port to the outside so that dust in front of the case body can be sucked from the suction port .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the configuration of an embodiment of the suction port of the present invention will be described with reference to FIGS.
[0008]
In FIG. 5, 1 is a vacuum cleaner, and this vacuum cleaner 1 is a so-called cyclone system that separates dust by gravity, and can travel on a floor surface F as a surface to be cleaned. The vacuum cleaner 1 includes a hollow main body case body 2 and a front upper portion of the main body case body 2 that is pivotally connected to the upper front side of the main body case body 2 so that the front upper portion of the main body case body 2 is rotated. A vacuum cleaner main body 5 having a main body case 4 provided with a lid body 3 that can be opened and closed is provided. Furthermore, as shown in FIG. 1, an electric blower 6 that is an electric part as a driving means is accommodated in the case body 2 for main body.
[0009]
And on the front side of the case body 2 for the main body, a bottomed cylindrical cup holder 7 is provided with a turning wheel (not shown) attached to the bottom so as to be rotatable and rotatable. The upper side of the cup holder 7 is covered with the lid 3. A pair of traveling wheels 8 that are rotatable along the front side and the rear side of the main body case 4 are attached to both sides of the main body case body 2.
[0010]
Further, a dust cup 9 as a dust separator is detachably attached to the suction side of the electric blower 6 between the cup holder 7 and the lid 3 of the main body case body 2 of the main body case 4. . The dust cup 9 swirls the dust sucked together with the suction air blown by the electric blower 6, drops the dust by centrifugal separation by its own weight, collects the dust, and does not want to be sucked into the electric blower 6. Captures dust with a large mass.
[0011]
Furthermore, a main body suction port 11 opened forward is provided on the front side of the lid 3. The main body suction port 11 communicates with the dust cup 9 on the base end side which is the exhaust side. In addition, the base end side of the flexible hose body 12 is connected to the distal end side, which is the suction side of the main body suction port 11, so as to be detachable. On the distal end side of the hose body 12, a hand operating portion 13 is provided as an operating means bent in a substantially square shape. A plurality of setting buttons 14 for setting the operation mode of the electric blower 6 and the like are separated and arranged in parallel in a portion facing the base end side of the bent portion in the hand operating portion 13. . In addition, a communication pipe 17 of a floor brush 16 as a suction port body, which is a nozzle body, is detachably communicated with the distal end side of the hand operating portion 13 of the hose body 12 via an extension pipe 15 as an extendable connection pipe. It is connected.
[0012]
This floor brush 16 communicates with the suction side of the electric blower 6 via the extension pipe 15, the hose body 12, and the main body suction port 11 and is connected to the cleaner body 5, for example, a carpet of the floor F in the room, etc. Install on top of the carpet and inhale the dust.
[0013]
The floor brush 16 is provided with a convex case body 21 that is horizontally long with respect to the traveling direction, which is the front-rear direction, and whose rear center is protruded rearward. As shown in FIGS. 1 to 4, the case body 21 includes a lower case 22 having an upper surface opened, and an upper case 23 covering the upper surface opening on the lower case 22 and opening the lower surface of the same material. A bumper 24 as a cushioning member for a soft member is sandwiched and fixed along a peripheral surface including the front surfaces of the lower case 22 and the upper case 23.
[0014]
Further, an elongated rectangular suction port 25 is opened on the lower surface of the lower case 22 of the case body 21 facing the floor surface F. The suction port 25 is provided at a position deviated to the front side of the traveling direction of the case body 21, and is formed in a horizontally long rectangular shape having a longitudinal direction along the width direction with respect to the traveling direction of the case body 21. Yes.
[0015]
Furthermore, a substantially rectangular rib 31 projects downward and is formed integrally with the upper case 23 on the lower surface of the upper case 23 above the suction port 25 inside the case body 21. The rib 31 protrudes to a substantially central region in the height direction in the case body 21. A rotary brush 32, which is a flooring blade as a rotary cleaning body, is attached to the suction port 25 below the rib 31.
[0016]
The rotating brush 32 includes a substantially cylindrical rotating shaft portion 33 having an axial direction along the longitudinal direction of the suction port 25, and is rotatable about the rotating shaft portion 33 toward the traveling direction of the floor brush 16. It is attached. Further, a plurality of, for example, four brush portions 34 are attached around the rotating shaft portion 33 of the rotating brush 32. These brush portions 34 are provided with a plurality of brush hairs 35, and these brush hairs 35 are continuously adjacent to each other along the axial direction of the rotating brush 32 and linearly toward the radial direction of the rotating shaft portion 33. Is provided. Furthermore, the brush portions 34 are spaced apart at substantially equal angles along the circumferential direction of the rotating shaft portion 33, that is, every 90 °. Furthermore, the rotating brush 32 is attached so that the lower end portion is positioned at a height substantially equal to the lower surface of the case body 21 in a state where the rotary brush 32 is attached to the case body 21.
[0017]
In the case body 21, an intake chamber 36 and an air passage chamber 37 are partitioned and formed by a rib 31 and a rotating brush 32 on the front side and the rear side in the traveling direction in the case body 21, respectively. That is, the front side and the rear side of the rotary brush 32 are respectively located in the intake chamber 36 and the air passage chamber 37, and the intake chamber 36 and the air passage chamber 37 are in communication with the suction port 25, respectively. .
[0018]
Here, a substantially rectangular cutout 41 is cut out at the front side of the suction port 25, which is the lower part of the intake chamber 36. The notch 41 has a longitudinal dimension slightly smaller than that of the suction port 25 and is formed over the front side surface of the lower case 22. A partition rib 42 is formed integrally with the lower case 22 at the upper end of the notch 41 in the intake chamber 36. The partition rib 42 is formed in an arc shape protruding upward in a side view, and extends along the longitudinal direction of the case body 21 over the entire longitudinal direction in the intake chamber 36 with respect to the floor surface F. It is formed substantially horizontally. Furthermore, the partition ribs 42 are formed slightly above the rotational axis of the rotary brush 32 in a side view. Further, the rear end portion of the partition rib 42 is in contact with the outer peripheral surface on the front side of the rotary brush 32.
[0019]
A brush stand assembly 43 as a wiping body is fitted into the notch 41 in the intake chamber 36 so as to be rotatable. That is, the brush base assembly 43 is attached to be positioned in front of the suction port 25 on the front side of the rotating brush 32 in the case body 21. The brush base assembly 43 is formed in a substantially cylindrical shape having a smaller diameter than the rotating brush 32 and substantially along the arcuate curve of the partition rib 42, and a predetermined angle toward the longitudinal direction of the case body 21, for example, It can be turned 90 °. Further, the brush base assembly 43 has an axial dimension substantially equal to the longitudinal dimension of the notch 41. Therefore, the brush base assembly 43 closes the lower part of the notch 41.
[0020]
Furthermore, the lower end portion of the brush base assembly 43 is located at a height substantially equal to the lower surface of the case body 21. That is, the lower end portion of the brush base assembly 43 is positioned at a height substantially equal to the lower end portion of the rotating brush 32. The distance between the center of the rotary brush 32 and the center of the brush base assembly 43 is substantially equal to the sum of the radial dimension of the rotary brush 32 and the radial dimension of the brush base assembly 43. Therefore, the outer peripheral surface of the brush base assembly 43 is in contact with the outer peripheral surface on the front side of the rotating brush 32.
[0021]
Further, an elongated rectangular recess 44 in a plan view is cut out in a central area in the axial direction on the outer peripheral surface of the brush base assembly 43. The recess 44 has a longitudinal direction along the axial direction of the brush base assembly 43, and the longitudinal dimension of the recess 44 is smaller than the axial dimension of the brush base assembly 43. The recess 44 is formed in a concave shape toward the central axis direction of the brush base assembly 43. For this reason, a pair of semi-cylindrical protrusions 45 are formed on one side of the brush base assembly 43 by the recess 44, and the brush base assembly 43 is formed in a substantially concave shape when viewed from the front.
[0022]
Furthermore, a long hole-like through hole 46 extending in the longitudinal direction of the recess 44 is formed through the surface of the brush base assembly 43 facing the recess 44. A base member 47 having a substantially T-shape in cross section is attached to the through hole 46.
[0023]
The base member 47 includes an elongated rectangular flat plate-like base portion 51 along the longitudinal direction of the concave portion 44, and the base portion 51 is fitted and attached to the concave portion 44. Further, on the side opposite to the recess 44 of the pedestal 51, a prismatic support 52 is formed integrally with the pedestal 51 so as to be perpendicular to the pedestal 51. The support portion 52 is inserted into the through hole 46. Further, on the side opposite to the base portion 51 which is the tip side of the support portion 52, an engagement portion 53 that is substantially perpendicular to the protruding direction of the support portion 52, that is, protrudes along the surface direction of the base portion 51 is supported It is formed integrally with the part 52. The engaging portion 53 is engaged with a stepped engaging step portion 54 formed in the brush base assembly 43. As a result, the base member 47 is prevented from being detached from the brush base assembly 43.
[0024]
Furthermore, the protrusions 45 are formed at positions that are substantially symmetric with respect to the axial direction of the brush base assembly 43, respectively. Further, auxiliary raised cloth 55 as an auxiliary cleaning member is attached to the outer peripheral surface of each protrusion 45. On the outer peripheral surface of the auxiliary raising cloth 55, a plurality of fine auxiliary raising 56 are provided over the entire surface.
[0025]
A brushed cloth 61 as a cleaning member as a wiping portion is attached to the entire surface of the brush base assembly 43 on the opposite side of the protrusion 45 from the outer peripheral surface. Similar to the auxiliary raising cloth 55, a plurality of fine raising parts 62 are provided on the entire outer peripheral surface of the raising cloth 61 over the entire surface.
[0026]
Each auxiliary raising 56 and each raising 62 are formed so as to be gradually curved in the circumferential direction of the brush base assembly 43 from the proximal end side toward the distal end side, that is, the hair end. Further, the ends of each auxiliary raising 56 and each raising 62 are curved so as to face the front of the floor brush 16 below the brush base assembly 43. Therefore, the hair ends of each auxiliary raising 56 and each raising 62 are curved in the clockwise direction along the circumferential direction of the brush base assembly 43 shown in FIGS. 1 and 3, that is, in the clockwise direction. Further, each auxiliary raising 56 and each raising 62 protrudes below the lower case 22 of the floor brush 16 on the lower side of the brush base assembly 43, and on the rear side of the brush base assembly 43, the brush portion 34 of the rotary brush 32. Are formed to have a length dimension that does not contact the partition rib 42 on the upper side of the brush base assembly 43.
[0027]
On the other hand, a communication port 63 is formed in the rear part of the air passage chamber 37, and the communication pipe 17 is connected to the communication port 63. Here, the leading end side, which is the suction side of the communication pipe 17, is slidably fitted in a concave fitting groove 64 provided on the entire outer periphery of the communication port 63, and extends along the circumferential direction of the communication pipe 17. It is attached so that it can rotate.
[0028]
Next, the cleaning operation according to the above embodiment will be described.
[0029]
First, the lid 3 of the main body case 4 is rotated with respect to the main body case body 2 to open the cup holding portion 7 of the main body case body 2, and then the dust cup 9 is attached to the cup holding portion 7. Fit and install.
[0030]
In this state, the lid body 3 is rotated to close the upper opening of the dust cup 9, the dust cup 9 is communicated with the base end side of the main body suction port 11 of the lid body 3, and the dust cup 9 is illustrated. The exhaust port that is not connected is connected to the suction side of the electric blower 6.
[0031]
In addition, the base end of the hose body 12 is connected to the main body inlet 11 of the main body case body 2, and the base end of the extension pipe 15 having the floor brush 16 connected to the tip is connected to the tip of the hose body 12. Let
[0032]
Thereafter, while gripping the hand operating part 13 of the hose body 12, a predetermined setting button 14 of the hand operating part 13 is turned on to drive the electric blower 6 in the main body case 4, and the operator operates the hand operating part 13 And the floor brush 16 is operated in the front-rear direction to clean it.
[0033]
Here, when the floor brush 16 is retracted, that is, when the floor brush 16 is retracted, as shown in FIGS. 1 and 2, the concave portion 44 and the protrusion are caused by the frictional force between the brush base assembly 43 and the floor surface F. The brush base assembly 43 rotates so that 45 is positioned on the front side of the floor brush 16 and the base portion 51 of the base member 47 is substantially perpendicular to the lower surface of the lower case 22.
[0034]
As a result, the raised cloth 62 of the raised cloth 61 comes into contact with the floor surface F, wipes off dust on the floor surface F, and closes the crossing path communicating from the front side of the floor brush 16 to the suction port 25 to suck in. The front side of the port 25 is sealed, and the degree of vacuum of the suction port 25 is improved. At the same time, the rotating brush 32 rotates to scrape dust that has entered the floor surface F and dust adhering to the floor surface F to collect dust, that is, scrape, and remove dust scraped by the rotating brush 32 from the suction port 25. Inhale.
[0035]
On the other hand, when the floor brush 16 is advanced, that is, when the floor brush 16 is advanced, the brush base assembly 43 is moved forward by the frictional force between the raised cloth 61 and the floor surface F as shown in FIGS. And the concave portion 44 faces the floor surface F, the base portion 51 of the base member 47 faces substantially horizontally with respect to the floor surface F, and the auxiliary raising 56 of the auxiliary raising cloth 55 of the protrusion 45 becomes the floor. The raising 62 of the raised cloth 61 that is in contact with the surface F and in contact with the floor F when the floor brush 16 is retracted is positioned on the rotating brush 32 side.
[0036]
As a result, the raising 62 of the raised cloth 61 comes into contact with the front side of the brush portion 34 of the rotating brush 32, and the dust on the floor surface F adhering to the raising 62 of the raising cloth 61 by the rotation of the rotating brush 32 is removed. In addition to scraping at 34, the auxiliary raised cloth 55 on the outer peripheral surface of the protrusion 45 comes into contact with the floor surface F and wipes off dust on the floor surface F.
[0037]
At this time, a space is formed between the brush base assembly 43 and the floor surface F by the recess 44, and the suction port 25 communicates with the space in front of the floor brush 16 outside the floor brush 16, and the front side of the floor brush 16 From the suction port 25, a crossing path that communicates with the suction port 25 and a space through which dust passes are secured below the brush base assembly 43, and dust on the floor surface F on the front side of the floor brush 16 is sucked in from the suction port 25.
[0038]
After that, the air sucked together with dust from the tip of the floor brush 16 becomes a suction wind, and after passing through each of the extension pipe 15 and the hose body 12 and being sucked into the main body suction port 11 of the lid body 3, It is sucked into the dust cup 9.
[0039]
The sucked air sucked in is collected by centrifugal separation of dust in the dust cup 9, flows out of the dust cup 9, passes through the electric blower 6, and becomes exhausted air from the exhaust port (not shown) through the main body case 4. Exhausted to the outside.
[0040]
As described above, according to the above-described embodiment, the dust on the floor surface F wiped by the raised portions 62 of the raised cloth 61 of the brush base assembly 43 is scraped off by the brush portion 34 of the rotating brush 32 and is discharged from the suction port 25. Since it can be sucked in and self-cleaned, that is, self-cleaning is possible, there is no need for the operator to periodically remove the dust wiped off with the brushed cloth 61, improving usability and making the floor brush 16 easy Maintenance is possible.
[0041]
Further, since the recess 44 is formed in the brush base assembly 43, when the floor brush 16 is advanced, the suction port 25 and the space in front of the floor brush 16 are communicated with each other by the recess 44 so that the air passage on the front side of the floor brush 16 is provided. In addition, since a dust passing space can be secured, dust on the floor surface F on the front side of the floor brush 16 can be sucked from the suction port 25 through the recess 44 and cleaned.
[0042]
Further, when the floor brush 16 is retracted, the brush base assembly 43 is rotated so that the recess 44 is positioned on the front side of the floor brush 16 and the raised cloth 61 is in contact with the floor surface F. Is closed with the brush base assembly 43 to improve the vacuum of the suction port 25, and the dust on the floor surface F wiped off with the raised brush 62 scraped off by the brush part 34 of the rotating brush 32 is more reliably sucked into the suction port. Can be inhaled from 25.
[0043]
And since the hair end of the raising 62 of the raising cloth 61 is attached so as to face the front of the floor brush 16 below the brush base assembly 43, the raising 62 is moved to the floor surface F of the floor brush 16 when the floor brush 16 is retracted. Therefore, it is difficult to generate a frictional force between the raised brush 62 and the floor surface F, and the operability of the floor brush 16 can be improved. Since the direction of movement of the brush 16 relative to the floor surface F is reversed, the brush base assembly 43 is reliably rotated in the rearward direction of the floor brush 16 by the frictional force generated between the raised brush 62 and the floor surface F. be able to.
[0044]
Further, by attaching the auxiliary raising cloth 55 to the outer peripheral surface of the protrusion 45 of the brush base assembly 43, the dust on the floor surface F can be wiped off with the auxiliary raising cloth 56 of the auxiliary raising cloth 55 even when the floor brush 16 is retracted. It can be cleaned efficiently.
[0045]
In the above embodiment, the vacuum cleaner 1 is not limited to the cyclone type, and may be a pot type, an upright type, a canister type using a dust collection pack, or the like.
[0046]
Further, the brushed cloth 61 is attached to the outer peripheral surface of the brush base assembly 43 as a cleaning member, but other cleaning members such as rubber can be used as long as they have the same function as the brushed cloth 61. is there.
[0047]
【The invention's effect】
According to the present invention, dust that has been wiped off by the wiping portion of the wiping body that has come into contact with the surface to be cleaned when the case body is retracted is scraped by the rotating cleaning body when the wiping portion comes into contact with the rotating cleaning body when the case body moves forward. When the case body is retracted, the wiping part closes the front of the suction port so that the degree of vacuum can be improved and sucked in from the suction port. It is not necessary to remove the dust, and when the case body moves forward, the recess can communicate with the front of the suction port to the outside so that the dust in front of the case body can be sucked from the suction port. .
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a suction port body according to an embodiment of a vacuum cleaner of the present invention.
FIG. 2 is a perspective view showing a suction port body of the same electric vacuum cleaner.
FIG. 3 is a cross-sectional view showing a suction port body of the same electric vacuum cleaner.
FIG. 4 is a perspective view showing a suction port body of the same electric vacuum cleaner.
FIG. 5 is a perspective view showing the same electric vacuum cleaner.
[Explanation of symbols]
1 electric vacuum cleaner 5 vacuum cleaner body 6 electric blower
16 Floor brush as suction port
21 Case body
25 Suction port
32 Rotating brush as rotating cleaning body
43 Brush stand assembly as a wiper
44 recess
61 Raised cloth F as wiping part Floor as cleaning surface

Claims (2)

A case body provided with a suction port that is open to face the surface to be cleaned;
A rotary cleaning body that is rotatably provided at the suction port of the case body and scrapes off dust on the surface to be cleaned;
A wiping body that is provided in the case body , located in front of the suction port, and whose outer peripheral surface is in contact with the surface to be cleaned, and is rotatable by a predetermined angle in opposite directions to each other in accordance with the forward and backward movement of the case body. provided with a door,
The wiped body is
Provided on the outer peripheral surface, contacting the surface to be cleaned by rotation of the wiping body when the case body is retracted, blocking the front of the suction port and wiping off dust on the surface to be cleaned; and A wiping portion that contacts the rotary cleaning body by the rotation of the wiping body at the time of advance and wipes off the dust wiped from the surface to be cleaned by the rotary cleaning body;
The wiper is provided at a position that is different in the circumferential direction of the wiper and the wiper and at a position facing the surface to be cleaned by the rotation of the wiper when the case body moves forward. A suction port body comprising a recess for communicating the front of the suction port to the outside . A vacuum cleaner body equipped with an electric blower;
Vacuum cleaner characterized by comprising a suction port body of the electric blower suction side mounting is claim 1, wherein in the.

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